163542803 has 8 divisors (see below), whose sum is σ = 173118000. Its totient is φ = 154230048.

The previous prime is 163542793. The next prime is 163542833. The reversal of 163542803 is 308245361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163542803 - 2⁴ = 163542787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163542803.

It is not an unprimeable number, because it can be changed into a prime (163542833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64328 + ... + 66821.

It is an arithmetic number, because the mean of its divisors is an integer number (21639750).

Almost surely, 2^163542803 is an apocalyptic number.

163542803 is a deficient number, since it is larger than the sum of its proper divisors (9575197).

163542803 is a wasteful number, since it uses less digits than its factorization.

163542803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131221.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 163542803 is about 12788.3854727639. The cubic root of 163542803 is about 546.8612434874.

The spelling of 163542803 in words is "one hundred sixty-three million, five hundred forty-two thousand, eight hundred three".